• Mount Pleasant High School is a public high school located in Mt. Pleasant, MI.  MPHS offers college preparatory courses to students in grades 9-12; technical preparatory courses from the Gratiot Isabella Technical Education Center, as well as Advanced Placement courses in a variety of academic subjects.  Mt. Pleasant High School enjoys state-of-the-art academic, arts, and athletic facilities.  MPHS is the largest high school within the Gratiot Isabella RESD, with an average enrollment of 1,100 students.  At Mt. Pleasant High School - Tradition Never Graduates.